Weather strip



I S ept. s, 1925. 1,552,842

C. F. HOFFBAUER WEATHER STRIP Filed March 20. 1924 INVENTOR 6, WW

ATTORNEY of New Patented Sept, 8, 1925.

UNITED STATES PATENT OFFICE.

CARL I. BOI'I'BAUEB, OI ION'I'CLAIB, :omw JERSEY.

WEATHER STRIP.

Application med larch a0, 1924. Serial no. 700,477.

To all whom it may concern:

Be it known that I, CARL F. HOFI'BAUER, a citizen of the United States, residin at Montclair in the county of Essex and tate jersey, have invented certain new and useful Im rovements in Weather Strips, of which the ollowing is a specification.

This invention relates to weather strips constructed of a flexible and resilient material fastened to the guides of a window frame so as to bear upon the sashes thereof, thus preventing wind or weather from blowing into the building.

Among the objects of my invention is to provide a weather strip which is simple in construction and chea to manufacture, and which is made of such material as will not only withstand the corrodin' influence of the atmosphere but be of su cient strength to be unaffected by wear and tear.

Another object is to provide a weather strip which is so constructed as to render even the most poorly constructed windows practically air tlght.

Still another object is to rovide a weather strip which may be secured in place without removing the sashes as is generally necessary in devices of this genera t pe, and whic therefore does not require t e services of a hi hly skilled mechanic for installation.

ith the foregoing and other objects in View the invention consists in the arrangement and combination of parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed or suggested herein, still for the purpose of illustrating a practical embodiment thereof reference is had to the accompanying drawings, in which like reference characters designate the same parts in the several views, andin which Figure 1 is a perspective view of a portion of a window showing the location of the strips.

Fig. 2 is a horizontal section on the line 2-2 of Fig. 1, showing the strips in normal or released position, the sashes being omitted.

Fig. 3 is a similar section on the line 33 of Fig. 1 showing the weather strips and the manner in which they bear upon the sashes.

Fig. 4 is a vertical section on the line 44 of Fig. 1, showing the application of my weather strip to the bottom of the lower sash.

Fig. 5 is a horizontal section of a modi fied form of my position. I

Fig. 6 is a detail of the strip end.

The sash frame 10 comprises the guides 11 and ll' for lower and upper sashes 12.and 13 respectively, of conventional sliding type.

The weather strips 14 and 14' suitable resilient material such as thin sheet brass or bronze and are reinforced at their edges by means of the beads or hems 15 which insure smoothness as well as strength of such parts. They are substantially angular 1n form, but the angles 16' may be more or less rounded as shown. Each strip consists 1n lts preferred form, of two flanges 18 and 18 having a normal relation or position of an acute angle to each other. The outer free flange 18 is wider than the one 18 through which suitable flat headed fasteners 17 are driven to attach the strip to the bottoms of the guides in the sash frame. The flange 18 1s (practlcallv fiat and so is easily applied an secured by drivin the fasteners directly therethrough, while t e free flange .18 may be so shaped, as shown in Fig. 2, as to be normally curved and spaced from the adjacent side wall of the guide occupied thereby so asto assui e ample contact with the adjacent surface of the sash that co-operates therewith. The strips are of course suitably hardened to retain their form and resiliency indefinitely.

The strip 14 is attached to the lower portion of the guide 11, while the strip 1 1- is attached to the upper portion of the guide 11, so as to co-operate with the lower inner are made of,

weather strip in released sash and the upper outer sash, respectively.

The length of the strips should always be at least slightly greater than the length of a sash, preferably by about five inches, so as always to remain in engagement therewith when the sashes are raised and lowered. The end of thestrip nearest the central portion of the window is beveled and beaded or hemmed as shown at 21 to prevent catching of said end against the adjacent stile.

The strips are'attached in manner: The lower sash may be raised first as far as it will go, and the upper end of the strip 14 slipped into the corner space between the sash and the ide, the entire strip being moved upwarf iintil its lower end is at the bottom of the ide. The main part of the stri is then astened in place, the sash lowere and the upper end of the the following the same prostrip is fastened. Practicall to attach the cedure may then be repeats strip 14' in lace.

As shown in Fig. 3 the strips are mounted upon similar sides of the guides 11 and 11' so that flanges 18 will bear upon the sashes in such manner as to cause them to move in-' ward as far as possible, and to bear upon the inner sides of the ides. The strips may, however be locate in any other suitable laces. Moreover the corner portions 16 will due to their rounded form-bear upon the edges 20 of the stiles, thus afl'ording another line of contact which helps to make a, tight window and is of particular value when, due to faulty and irregular construction of the window, said flanges should fail at some point to bear against said stiles.

The modification shown in Fig. 5 may be desired, in which the corner 16" is of smaller radius, a she corner being in each case avoided as it mi g t tend to weaken the stri The flange 18 ma then alone make a tlght joint along the hne of contact between its edge and the face of the stile.

In Fig. 4 I show my strip adapted for use on the bottom of the lower sash and coming into contact with the window sill when said sash is fully lowered. The beads of the strip 19 are formed inwardly of the angle, while the wider flange 19' 1s flared downward. The fasteners 17 are driven through the narrower flange of the stri into t e outside corner portion of the rai the corner of the strip lying neatly against the edged the rail.

Other uses and applications of my sealing stri not only to windows but also to doors wil be apparent from the foregoing description. I

Among these uses is the possibility of forming with the aid of my angular weather stri a guide channel upon the sash frame an along which the sash or sashes may glide.

I claim:

In a window, the combination with slidable sashes and a frame therefor, of strips consisting of relatively resilient material of substantially angular form, so as to comprise two flan es, whereof one flange bears upon a sash w ile the other bears u on said frame means to secure one of sai flanges t'o window frame while the other flange is free, each of said strips being substantial- 1y longer than the sash co-operating therewith, the ends of said strips which are nearest the central portion of said frame having their free flanges beveled to prevent cutting of the parts shdable thereover.

ture.

CARL F. HOFFBAUER.

In testimony whereof I afiix my signa- 

